Physical and Chemical Changes Flashcard

Front

What is a chemical change?

Back

A chemical change is a process where substances combine or break apart to form new substances with different properties. Examples include rusting, burning, and baking.

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition. Examples include melting, freezing, and cutting.

Front

What happens to bananas as they ripen?

Back

As bananas ripen, they undergo a chemical change, turning from green to yellow due to the breakdown of chlorophyll and the production of sugars.

Front

What type of change occurs when baking cupcakes?

Back

Baking cupcakes is a chemical change because it involves the transformation of ingredients into new substances through chemical reactions.

Front

What is the result of cutting an orange into wedges?

Back

Cutting an orange into wedges is a physical change because it alters the shape and size of the orange without changing its chemical composition.

Front

What state of matter is represented by water?

Back

Water is represented as a liquid state of matter.

Front

What happens when milk goes sour?

Back

When milk goes sour, it undergoes a chemical change due to the action of bacteria that produce lactic acid, altering its taste and smell.

Front

What is an example of a physical change?

Back

An example of a physical change is ice melting into water.

Front

What is an example of a chemical change?

Back

An example of a chemical change is the combustion of wood in a fire.

Front

What are the four states of matter?

Back

The four states of matter are solid, liquid, gas, and plasma.